# Schedules of Controlled Substances: Placement of 4-Hydroxy-N,N-Diisopropyltryptamine (4-OH-DiPT), 5-Methoxy-alpha-Methyltryptamine (5-MeO-AMT), 5-Methoxy-N-Methyl-N-Isopropyltryptamine (5-MeO-MiPT), 5-Methoxy-N,N-Diethyltryptamine (5-MeO-DET), and N,N-Diisopropyltryptamine (DiPT) Into Schedule I

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Justice Department; Drug Enforcement Administration |
| Type | Proposed rule |
| Action | Notice of proposed rulemaking. |
| Published | 2026-09-23 |
| Comments close | 2026-10-23 |
| Significant | No |
| CFR parts | 21 CFR 1308 |
| Summary | The Drug Enforcement Administration proposes placing five tryptamine hallucinogens, 4-hydroxy-N,N-diisopropyltryptamine (other names: 4-OH-DiPT; 3-(2-(diisopropylamino)ethyl)-1H-indol-4- ol), 5-methoxy-alpha-methyltryptamine (other names: 5-MeO-AMT; 1-(5- methoxy-1H-indol-3-yl)propan-2-amine), 5-methoxy-N-methyl-N- isopropyltryptamine (other names: 5-MeO-MiPT; N-(2-(5-methoxy-1H-indol- 3-yl)ethyl)-N-methylpropan-2-amine), 5-methoxy-N,N-diethyltryptamine (other names: 5-MeO-DET; N,N-diethyl-2-(5-methoxy-1H-indol-3- yl)ethanamine), and N,N-diisopropyltryptamine (other names: DiPT; N-(2- (1H-indo |
| Document number | 2026-19400 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/23/2026-19400/schedules-of-controlled-substances-placement-of-4-hydroxy-nn-diisopropyltryptamine-4-oh-dipt). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.